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NaCl溶液中植酸(肌醇六磷酸酯)对A3钢的缓蚀作用鲁道荣1,翟海涛1(1.安徽省合肥市合肥工业大学化工学院)摘 要:采用线性扫描伏安法,交流阻抗法和SEM,研究植酸在3.50%NaCl溶液中对A3钢的缓蚀作用.结果表明,植酸在3.50%NaCl溶液中是一种阳极缓蚀剂,它可以使A3钢腐蚀电流密度减小,极化电阻增大,对A3钢具有明显的缓蚀作用,其缓蚀效率与植酸浓度有关.关键词:金属材料; 植酸缓蚀; A3钢; 覆盖度; 极化电阻; 双电层电容......
pH值对电化学制备纳米铜粉的影响徐建林1,陈纪东2,杨树华1(1.甘肃省兰州市兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室2.绍兴市质量技术监督检测院,浙江绍兴 312017)摘 要:在十二烷基硫酸钠,吐温80,十二烷基硫醇和硫酸铜混合而成的乳液中,采用电化学合成方法制备稳定的,粒径均匀的Cu纳米颗粒.应用XRD,TEM及FT-IR对所制备的Cu纳米颗粒的结构,形貌及粒径大小进行表征.结果表明,随着pH值的增大,纳米铜粉的尺寸,分散性及颗粒分布范围发生显著的变化.当pH为0.5时,可以制备得到尺寸较小......
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by 67% and 70% compared with the blank one, respectively, and the salt spray tests also show good corrosion resistance. The electrochemical tests demonstrate that the self-corrosion current density...; (1) (2) Salt spray test can be accepted to determine the corrosion resistance......
naphthalene derivatives with the micro-electrolysis shows the apparent first-order kinetics and the order of removal efficiency of the naphthalene derivatives is sodium 2-naphthalenesulfonate, 2-naphthol... efficiency is investigaed.2 Experimental 2.1 Materials 2-naphthol(99.5%)(NO), 1-naphthamine (99%) (NM), sodium 1-naphthalenesulfonat(99%)(NS), 2, 7- dihydroxynaphthalene(98.31%)(DHN) and 1-naphthol-8......
pure nano-Si and FG/C composites. Compared with the Si/FG/C composite using washing powder as dispersant, the Si/FG/C composite using sodium dodecyl benzene sulfonate (SDBS) as dispersant has better... the agglomeration of nano-sized Si and the flotation of submicron flake graphite on the liquid surface [14,20-22], two kinds of dispersants (~ 0.9 g) were also used separately. One was pure sodium......